They have been part of the United States' space program for more than 20 years. Who are these talented, courageous women? NOVA looks at astronaut Sally Ride and her colleagues, how they are trained and their role in NASA's future.
Seen in more than 100 countries, NOVA is the most watched science based television series in the world and the most watched documentary series on PBS. It is also one of television's most acclaimed series, having won many major television awards, most of them many times over.